Update in OP: Get smell out of Rtic soft sided ice chest

Update 7/10/19: Tried all suggestions, lost cause. Everything worked until it was used again. As soon as you go to use it, the musky smell returns. It never returns strong, but enough to tell you it's there. So, in the trash it went. RTIC soft sided ice chests are not made for smells. Thanks for all the suggestions!

Update 6/15/19: Fabuloso smell wore off. Back to stinking. Going to try baking soda and water mix.

Update 6/3/19: I tried the Fabuloso first. Did a whole small bottle with a little bit of water and zipped it up. Sat for roughly two days. I just emptied and rinsed out. As expected, it smells like Fabuloso. I’m going to let it air out and update everyone on test # 1.

Original Post 6/1/19:
I have a Rtic soft pack 30. Was at a place that didn’t have a trash can, so I threw my empties back into the ice chest. Forgot about it for a week or so and when I pulled it out again it was pretty bad. I’ve tried cleaning it with dawn, vinegar, and bleach. I’ve tried leaving it out in the sun. I’ve tried even just using it. No use! The smell just won’t come out. I can’t bring myself to throw it out, but I’m close.

I have found some “cooler reviver”, but I can’t find enough info on it to see if it’s worth it. Other than that, I’m kind of stuck on ideas.

Any advice?